The U.S. aircraft register, updated daily
Models · Waco · Piston singles · data as of November 4, 2026

Waco YQC-6

5 on the U.S. register. Built from 1936. Washington has the most (1). 40% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.

About the YQC-6 from the FAA's model table

Type
Fixed-wing, single engine · Piston singles
Power
Piston (reciprocating), 1 engine
Common engines
Jacobs L4 /R755-7 (5)
Fuel
100LL avgas
Unleaded: 100R under STC SA04652CH; UL94 under STC SA01757WI; UL91 under STC SA01831WI
Seats
5
Built of
steel tube, wood and fabric · A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering.
Maker on the register
Waco
Registered
earliest certificate June 19, 1969; newest April 1, 2025

Where they are owner's state

By state, as a table
aircraft
Washington1
Texas1
Ohio1
Illinois1

Who owns them registrant type

By owner type, as a table
aircraftshare
Individual240%
LLC120%
Corporation120%
Co-owned120%

Versions as the FAA records them · click one to list only those aircraft

VersionRegisteredBuiltShare
YQC-651936100.0%

When they were built by decade

0124551930
By decade built, as a table
aircraft
19305

Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far

Registrations by year, as a table
aircraft
20131
20231
20241
20251

Registration status

By status, as a table
aircraftshare
Valid5100%

Airworthiness certificate class

By airworthiness certificate, as a table
aircraftshare
Standard5100%

Biggest operators companies, schools and clubs

Largest fleets, as a table
aircraft
Waco 705 LLC1
Port Townsend Aero Museum1

Fleet pages: Port Townsend Aero Museum

Accident history NTSB records · 0 cases since 1982, 0 fatal

No NTSB accident or incident records match this family's versions. Each aircraft's own page also shows its record. How models compare: Accidents by model in Aviation Analytics.

Questions people ask answers refresh every morning

How many Waco YQC-6 aircraft are registered in the U.S.?

5 as of November 4, 2026, counting 1 version the FAA records separately.

Which state has the most Waco YQC-6s?

Washington, with 1.

Who owns the Waco YQC-6?

40% are registered to companies, flight schools, clubs and other organisations; the rest to individuals and co-owners, who are not named on this site at this time.

When were the Waco YQC-6s on the register built?

In 1936.

What is the Waco YQC-6 made of?

A welded steel-tube fuselage and wooden wings, all covered in fabric: the construction of the 1930s and 1940s, which makes wood rot and fabric age the inspection items. A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering. The FAA's type certificate data sheet is the authority for any one model.

What the FAA has certified, ordered and been told about the Waco YQC-6 the component layer

A welded steel-tube fuselage and wooden wings, all covered in fabric: the construction of the 1930s and 1940s, which makes wood rot and fabric age the inspection items. A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering. The design is held under 1 type certificate (TC 598, held by The Waco Aircraft Company). No FAA order in the current files names this model. 7 approved modifications exist for it, the most by Swift Fuels LLC.

Approved modifications 7 supplemental type certificates

Changes the FAA has approved for this design, from new avionics and engines to floats and parachutes. The companies holding the most:

Latest

2026-07-14SA04652CH · To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification
2024-08-21SA01757WI · To allow the use of UL91 or UL94 (minimum) grade aviation fuel
2020-07-27SA01831WI · To allow the use of UL91 (minimum) grade aviation fuel
2017-12-20SA01406NY · Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine...
2008-07-24SA02033AT (PAGE 5) · Modification to install an air-oil separator to prevent oil from being aspirated from the engine...

Certificates and bulletins

TC 598Type certificate held by The Waco Aircraft Company · 3 models listed

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how the YQC-6 links to the rest of the register

Design
Engines
Where they are
Biggest operators
Record
Airworthiness

The whole map of how records connect · these connections as data: /graph/model/waco/yqc-6.json.

Aircraft newest certificates first · 5

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N16205 Waco
YQC-6
Port Townsend Aero Museum
Port Townsend, Washington
Standard 2025-04-01 ValidFAA registration status code V: Valid registration. All codes
N16212 Waco
YQC-6
Withheld at owner's request
Standard 2024-06-07 ValidFAA registration status code V: Valid registration. All codes
N15705 Waco
YQC-6
Waco 705 LLC
Fredericksburg, Texas
Standard 2023-01-18 ValidFAA registration status code V: Valid registration. All codes
N15722 Waco
YQC-6
Individual owner
Ohio
Standard 2013-06-25 ValidFAA registration status code V: Valid registration. All codes
N16229 Waco
YQC-6
Individual owner
Illinois
Standard 1969-06-19 ValidFAA registration status code V: Valid registration. All codes